Nailing machine



Jan,13,1925

F.A.REARDON NAILING MACHINE Filed Nov. 10. 1920 INVENTOR TLReardon 1 0 m Y Z w m 2 MW t EMU. L 9 .mJ mg .0 1 WH M MW M o M QM f ATTORNEY Patented Jan. 13, 1925.

FRED A. REARDON, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO HAIVIEL SHOE MA- CHINERY COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF MASSA- CHUSETTS.

NAILIN G lLACHINE.

Application filed November 10, 1920. Serial No. 422,985.

To all whom it may concern:

Be it known that I, FRED A. RnARnoN, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Nailing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to nailing machines being particularly intended for nailing heels on shoes where the nails are driven from within the shoe. For this purpose a shoe jack, having at its upper end a last member insertable within the heel portion of a shoe and engaging the sole with its upper face,

is slidably supported on the machine frame. This last member is made as a nail block having a plurality of nail tubes therein and a gang of reciprocating nail drivers are slidable within the tubes. These drivers have an extension down through the jack, which, on sliding of the jack to one limit. of its path is placed in line with a driver actuator carried by the machine. At the other limit of its path the jack is out of alignment with the actuator, while the nail block, which is not at that time carrying a shoe, is in cooperative relation to a nail loading device by which a nail is fed head downward into each nail tube and is supported by the end of the driver therein. It sometimes happens with such a construction, through faulty operation of the nail loader, that one or more nail tubes will fail to receive a nail.

One feature of this invention relates to means by which the failure of the nail tubeto receive its nail will be readily observed. by the operator in advance of the driving operation so that a nail may be supplied, to insure the heel being properly nailed on the driving stroke. This is effected in the present invention by providing a stop to limit the retraction of the drivers so that the points of the nails in the tubes are adjacent the upper ends thereof where they may be readily seen on movement of the jack to driving position so that the absence of a nail is readily noticed. This stop is made adjustable for nails of difierent lengths.

A further feature of this invention relates to acounter-engaging element carried by the nail block and adjustable thereon to determinethe position of the nails longitudinally of the shoe. This adjustment is desirable to properly position the nails for varlously shaped heels to avoid splitting the latter by driving nails into the weaker portions thereof.

For a more complete understanding of this inventlon together with further objects and advantageous details and combinations of parts reference may be had to a description of an embodiment thereof disclosed in the accompanying drawings in which,

Fig. 1, represents a fragmentary view partly in section of the jack supported on the machine in nail driving position with the nails in position to be driven.

I Fig. 2, is a somewhat similar view showmg the nails as driven into the heel, and,

F 1g. 3, is a section through the nail block on line 3-3 of Fig. 1.

In these drawings A represents a portion ofthe machine frame having a slideway 1 at its upper face. Mounted to slide in this way is a jack indicated at B. At its upper end the jack B carries a last member com prising a nail block 2 having a plurality of nail tubes as 3 vertically arranged therein. The nail block is made fast by means such as screws 4 to upstanding arms 5 and 6 at the top of the jack B. Slidably mounted in the nail tubes 3 is a gang of nail drivers each driver being indicated by 7, the lower ends of these drivers terminating in a plate 8 to which they are made fast. The jack B has a vertical perforation in which is slidably mounted a rod 9 which is fastened to the plate 8 by a screw 10 passing therethrough, and threaded on the end of the rod 9 near the base of the jack B and mounted to slide in an enlarged recess 11 therein is a block 12. This block has a slot 13 in the side thereof, and a key lt carried in a similar slot 15 of the recess 11 engages in the slot 13, this key being fixed in position by a bolt 16. By this means block 12 is prevented from rotation within the recess 11. The lower end of rod 9 is threaded into the block 12 at 18 and the upper end of rod 9 has a series of holes 19 therein for the reception of a tool by which rod 9 may be rotated to adjust the vertical position of the block 12 relative thereto.

Thus, not only is the amplitude of operative movement of the thrust-rod 9 determined, and hence the advance positions of the drivers, through the adjustment of the block 12 upon said rod, but the initial positions of the points of the nails within the tubes 3 are fixed by adjustment of the positions of the drivers by means of the stopscrew 28. In other words, the adjusting means 28 determines the initial or retracted positions of said drivers and the adjusting means 18 determines their advance positions, so that provision is made for adapting the machine for applying nails'of different lengths to heels of different heights.

Theijacl; is provided with handle 20 and a latch pin 21 passing through'the lower portion thereof is arranged to engage in perforations, one of which is shown at 22,111

the" frame A to lock the jackjat either limit of its sliding men- 11, The latch pin 21" has a laterally "extending pin 21 which projects through the forked extremity of alever 23, this lever having an upwardly extending actuating arm 2 .15110111131113 urged away from theli'andle 20"by-1neans of a coil' spring 25, the actionof this spring serving to urge the latch rod 21 into latching position, and the arm 24 being engageable by the'operators fingers torelea-se the locking bolt when desired.

"At one end of the slideway 1,"irame A has a downwardly ext-ending portion 26' within"whicha Fdriver actu'at-or member 27 1S reciprocable. When the ack is in the position shownin Flg. 1, the di'iver'actuator is in aligninent with the rod 9 and on upward ,iriov'ein'ent thereof impinges against the block 12 and imparts the hail "driving stroke to the drivers 7. The actuator 27 on its retraction passes below 'the' surface of the fraiiie Asoas not to 'iiiterfefrej With the sliding mot-ion of the jack B. I Itis preferitloly giyen a stroke of constant amplitude asby 'iiieans'of acrank, the final driving posititjnf of the drivers 7 being adjustable by reg'hlating the position of the block 12""011 the r'odS). Iiii'medilttely below the plate 8 aiiovenient of the drivers.

i adjusting'screw '28 is threaded into the top face of the jack B, this 'sc'i'ewhavinga head provided with perforations 2!)" for the reception of a tool by which the screw may be" turned to adjust its height, the screw teniiihg a stop for limiting the downward The rear face of the block 2 has a slot out therein substantially parallelto its upper facefat 30 and slid'ably moiinted therein is a counterfengaging member 31'. This inemberhas'a pair of forwardlyprojecting iiiisflgand 33 projecting within the matiiig perfor ations 3etjand 35 in' the block 2. A'screw 36 passing throughonewall of the block 2 engages the pin 33 to lock the block 31in adjusted position.

The operation of this mechanism is as ,1 H r The parts being in thep'ositi'on shown in 1jex cept that the nail tubes liave no nails therein,the"operator grasps the. handle 2O bringing the jack B again in position in ptisi tion' in. the vacant "tube;

dle 20 and by movement of thearnir24 re-l leases the bolt 21 and then pushes jack B rearwardly along the slideway into (:0-

operation with a suitable nailloading mechanism by whichnails are fed into the nail tubes 3 head downwardly,the heads resting'o'n the ends of the duvets? The operator then pulls forwardly on the hanshown in Fig. 1 with the 'rod 9 in align ment with the actuator By turning the screw 28 the posititin' of the drlversmay' be adjusted so that the points of thenails imty' he readily visible at the upper ends of the nail tubes. When so ad usted it is evident that should the/1131i loader fail to fill oncpt the tubes. on retraction of the jack fronrthe loader, this failure isreadily ap parent to the-operator who may 'place'a nail Theshoe is then placed in positionover the iiailhlock as shown in Fig. 2,'the member"31"engag- 111;; the cotinterand' being adjusted so'as to position thenails in the desired relation;

lengthwise of the shoe so that theyinay'en ter into the stronger arts of theih'eelon the operation of the' m'achine. By mounting thehOunter engaging memher in' a' -s'lotas shown, all danger of the. u'pper being caught between it and the black isjdbviated. Actuator 27 'isthen moved upwardly-, contacting with the block 12, and raisesthe" same together with the rod 9'and the drivers; to impart'the driving stroke to the la'tterf On retraction of the actuator 27in to the position shown'in Fig. 1, thema'chine'a'utd matically stops and the nail drivers 7' retract until" the {plate 8 impinges bn the head of the, screw 28. The shoe isth en removed and the partsare then in position for repetiti'on of the same cycle of operation. i 1 Having thus described ens embodiment of this invention itshou'ld be evident that many changes and niodifica'ti'ons might be niade "therein without departingirbin its spiritor scope as defined by 'the ap pended claims. 1. In combination, a'nail block having a plurality of nail-tubes ftherein, ag ang of nailf-drivers disposed within said tubes to support and drive nailssplaced therein, a .nail drlver actuator f member adapted to impart "hperative nail-driving "strokes to said nail-drivers, means for adjustably determining the limit of effective advance movement of said actuator-member, and means for adjustably determining the retracted position of said drivers irrespective of said effective advance movement of the driver actuator member.

3. In a heel nailing machine, a nail block movable from nail loading to nail driving position and having a plurality of nail tubes, a gang of nail drivers reciprocable in said tubes to drive nails supported on said drivers in said tubes, an actuator movable in a fixed path and engageable With said gang for imparting thereto nail driving movement when said block is in driving position, and means for adjustably determining the limit of retraotive movement of said drivers independently of said actuator.

4. In a shoe-heel attaching machine, a frame provided With a slideway, a jack fitted to and laterally movable Within said slideway, means for locking said jack in nail-driving andin retracted positions, a

nail-bl0ck sustained by said jack and pro-- vided With a plurality of nail-driver tubes, nail-drivers Within said tubes, and means sustained independently of said ack and p0 sitioned to actuate said drivers when the jack is in nail-driving position.

In testimony whereof, I have signed my name to this specification.

FRED A. REARDON. 

